package com.mobile.challenge.configurer;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.Arrays;

@Aspect
@Component
public class WebLogAspect {
    private static final Logger LOG = LoggerFactory.getLogger(WebLogAspect.class);

    static {
    }

    @Pointcut("execution(public * com.mobile.challenge..*Controller.*(..))")//两个..代表所有子目录，最后括号里的两个..代表所有参数
    public void logPointCut() {
    }

    @Before("logPointCut()")
    public void doBefore(JoinPoint joinPoint) throws Throwable {
        // 接收到请求，记录请求内容
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();

        // 记录下请求内容
        LOG.info("┏━━━━━ log begin [" + request.getRequestURL().toString() + "] ━━━");
        LOG.info("┣HTTP METHOD:    " + request.getMethod());
        LOG.info("┣IP:             " + request.getRemoteAddr());
        LOG.info("┣CLASS_METHOD:   " + joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName());
        LOG.info("┣参数:            " + Arrays.toString(joinPoint.getArgs()));
        LOG.info("┗━━━━━ log begin [" + request.getRequestURL().toString() + "] ━━━");

    }

    @AfterReturning(returning = "ret", pointcut = "logPointCut()")// returning的值和doAfterReturning的参数名一致
    public void doAfterReturning(Object ret) throws Throwable {
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();
        // 处理完请求，返回内容
        LOG.info("┣返回值:   " + ret);
        LOG.info("┗━━━━━ log end   [" + request.getRequestURL().toString() + "] ━━━");

    }

    @Around("logPointCut()")
    public Object doAround(ProceedingJoinPoint pjp) throws Throwable {
        // 接收到请求，记录请求内容
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();

        long startTime = System.currentTimeMillis();
        Object ob = pjp.proceed();// ob 为方法的返回值
        LOG.info("┏━━━━━ log end   [" + request.getRequestURL().toString() + "] ━━━");
        LOG.info("┣耗时:     " + (System.currentTimeMillis() - startTime));

        return ob;
    }

}
